Product Overview
The LM75A/B/C is an industrial-standard digital temperature sensor and thermal monitor featuring an I2C serial interface. It offers precise temperature measurements with an error of less than 1C across its operating range of -40C to +125C, providing good temperature linearity. This device is suitable for various applications including general system thermal management, communication infrastructure, electronic test equipment, and environmental monitoring. Key features include operation from a single +2.7V to +5.5V supply, no external components required, a low-power shutdown mode, and the ability to connect up to eight LM75A/B/C devices on a single bus. Its programmable temperature limits and ALERT pin allow it to function as a thermostat or over-temperature alarm. Factory calibration eliminates the need for additional user processing of temperature output.
Product Attributes
- Brand: LM75A/B/C
- Interface: I2C
- Package Options: SOIC-8, MSOP-8
Technical Specifications
| Specification | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage (LM75) | 2.7 to 5.5 | V | |
| Supply Voltage (V+) | 1.4 to 5.5 | V | Recommended operating range |
| Operating Temperature Range | -40 to 125 | C | |
| Temperature Accuracy (1C) | 0.5 to 1 | C | At +25C; 0C to +70C; -40C to +125C |
| Temperature Resolution | 0.0625 | C | 12 Bits |
| Conversion Time (One-Shot Mode) | 26 to 35 | ms | Typical |
| Bus Timeout | 22 to 40 | ms | Typical |
| Bus Communication Frequency (Fast Mode) | 0 to 0.4 | MHz | |
| Bus Communication Frequency (High-Speed Mode) | 0 to 2.75 | MHz | |
| Average Quiescent Current (Idle) | 15 to 37 | A | |
| Shutdown Current (Idle) | < 0.5 | A | Typical |
| ESD Voltage (Human Body Mode) | 5000 | V | Per ANSI/ESDA/JEDEC JS-001 |
| ESD Voltage (Machine Mode) | 300 | V | Per JEDEC-STD |
| Pin Voltage (SCL, SDA, A2, A1, A0) | -0.5 to 6 | V | |
| Pin Voltage (ALERT) | -0.5 to (V+)+0.3 | V | 5.5 V |
2411111138_Tudi-LM75BIMMX-TUDI_C41417243.pdf
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